package vidudemnguocthoigian;

import java.util.TimerTask;

public class ClockDemNguoc extends TimerTask {
	//
	private int _sothoigian;
	//
	public ClockDemNguoc(int sothoigian) {
		this._sothoigian = sothoigian;
	}
	public void run() {
		this._sothoigian--;
	}
	public int tinhThoiGianConlai(){
		return this._sothoigian;
	}

}
